Teachers' classroom management practices are rooted in assumptions based on their experiences and perceptions. At times, these assumptions are only partially informed, and serve to limit action and perceived responsibility. In this article, five common "half-truths" that guide classroom management are discussed. For each, the basic premise is identified, along with the important relevant details, which are often overlooked. It is suggested that a more complete picture of each of these assumptions may reveal many management situations to be much more dynamic, with more options for action available.